基於Eclipse搭建SSH框架：第四篇 使用SSH開發一個小程式
阿新 • • 發佈：2019-01-29
本文將介紹如何使用SSH框架開發一個簡單的使用者註冊程式。
注:由於在開發本註冊程式的時候，報出了 java.lang.ClassNotFoundException: org.hibernate.service.jta.platform.spi.JtaPlatform等錯誤，網上說的是spring3與hibernate4的整合的確會有錯誤。，所以本專案中使用的hibernate修改為使用hibernate3.6.7
1.在mysql資料庫中建立資料庫test ，並在test中建立user資料表
2.在src目錄下建立com.integration.entity包，然後在該包下建立持久化類以及對映檔案
package com.integration.entity; public class User implements java.io.Serializable{ private int id; private String name; private String password; public User(){ } public User(int id, String name, String password) { this.id = id; this.name = name; this.password = password; } public int getId() { return id; } public void setId(int id) { this.id = id; } public String getName() { return name; } public void setName(String name) { this.name = name; } public String getPassword() { return password; } public void setPassword(String password) { this.password = password; } }
<?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE hibernate-mapping PUBLIC "-//Hibernate/Hibernate Mapping DTD 3.0//EN" "http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd"> <hibernate-mapping> <class name="com.hibernate.entity.User" table="user"> <id name="id" column="user_id" type="java.lang.Integer"> <generator class="increment"/> </id> <property name="name" type="java.lang.String" column="name" length="20"></property> <property name="password" type="java.lang.String" column="password" length="12"></property> </class> </hibernate-mapping>
3.在src目錄下建立com.integration.dao包，然後在該包下建立DAO介面UserDAO.java、DAO實現類UserDAOImpl.java
package com.integration.dao;
import com.integration.entity.User;
public interface UserDAO {
void save(User user);
}
package com.integration.dao;
import org.hibernate.SessionFactory;
import org.springframework.orm.hibernate3.HibernateTemplate;
import com.integration.entity.User;
public class UserDAOImpl implements UserDAO {
private SessionFactory sessionFactory;
private HibernateTemplate hibernatetemplate;
public void setSessionFactory(SessionFactory sessionFactory) {
this.sessionFactory = sessionFactory;
}
private HibernateTemplate getHibernateTemplate() {
if (hibernatetemplate == null)
hibernatetemplate = new HibernateTemplate(sessionFactory);
System.out.println("here");
return hibernatetemplate;
}
@Override
public void save(User user){
getHibernateTemplate().save(user);
}
}
4.在src目錄下建立com.integration.action包，然後在該包下建立RegisterAction類，如下：
package com.integration.action;
import com.integration.dao.UserDAO;
import com.integration.entity.User;
import com.opensymphony.xwork2.ActionSupport;
public class RegisterAction extends ActionSupport{
private String userName;
private String pwd;
private UserDAO userDAO;
public UserDAO getUserDAO() {
return userDAO;
}
public void setUserDAO(UserDAO userDAO) {
this.userDAO = userDAO;
}
public String getUserName() {
return userName;
}
public void setUserName(String userName) {
this.userName = userName;
}
public String getPwd() {
return pwd;
}
public void setPwd(String pwd) {
this.pwd = pwd;
}
public String execute() throws Exception{
User user=new User();
user.setId(1);
user.setName(this.userName);
user.setPassword(this.pwd);
userDAO.save(user);
return "success";
}
}
5.1web.xml
<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns="http://java.sun.com/xml/ns/javaee"
xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"
id="WebApp_ID" version="2.5">
<display-name>S2SH</display-name>
<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>/WEB-INF/classes/applicationContext.xml</param-value>
</context-param>
<listener>
<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
</listener>
<filter>
<!-- Filter名字 -->
<filter-name>struts2</filter-name>
<!-- Filter入口 -->
<filter-class>org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter</filter-class>
</filter>
<filter-mapping>
<!-- Filter名字 -->
<filter-name>struts2</filter-name>
<!-- 截獲的URL -->
<url-pattern>/*</url-pattern>
</filter-mapping>
<welcome-file-list>
<welcome-file>index.jsp</welcome-file>
<welcome-file>index.html</welcome-file>
<welcome-file>index.htm</welcome-file>
</welcome-file-list>
</web-app>5.2 struts.xml
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE struts PUBLIC "-//Apache Software Foundation//DTD Struts Configuration 2.0//EN"
"http://struts.apache.org/dtds/struts-2.0.dtd">
<!-- 指定struts.xml檔案的根元素 -->
<struts>
<constant name="struts.i18n.encoding" value="UTF-8"></constant>
<!-- <constant name="struts.objectFactory" value="spring" />
- -->
<!-- 定義包 -->
<package name="default" namespace="/" extends="struts-default">
<action name="register" class="registerService">
<result name="success">/success2.jsp</result>
</action>
</package>
</struts>5.3applicationContext.xml
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:p="http://www.springframework.org/schema/p"
xmlns:aop="http://www.springframework.org/schema/aop"
xsi:schemaLocation="http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
http://www.springframework.org/schema/aop
http://www.springframework.org/schema/aop/sping-aop-3.0.xsd">
<!-- 定義資料來源org.springframework.jdbc.dataSource.DriverManagerDataSource -->
<bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource">
<!-- 指定連線資料庫的驅動 -->
<property name="driverClassName">
<value>com.mysql.jdbc.Driver</value>
</property>
<!-- 指定連線資料庫的URL -->
<property name="url">
<value>jdbc:mysql://localhost:3306/test</value>
</property>
<!-- 指定連線資料庫的使用者名稱 -->
<property name="username">
<value>root</value>
</property>
<!-- 指定連線資料庫的密碼 -->
<property name="password">
<value>toor</value>
</property>
</bean>
<!-- 定義Hibernare的sessionFactory -->
<bean id="sessionFactory"
class="org.springframework.orm.hibernate3.LocalSessionFactoryBean">
<!-- 依賴注入已配置好的資料來源dataSource -->
<property name="dataSource">
<ref local="dataSource" />
</property>
<!-- 指定Hibernate所有對映檔案的路徑 -->
<property name="mappingResources">
<list>
<value>com/integration/entity/User.hbm.xml</value>
</list>
</property>
<!-- 設定Hibernate的屬性 -->
<property name="hibernateProperties">
<props>
<!-- 配置Hibernate的資料庫方言 -->
<prop key="hibernate.dialect">
org.hibernate.dialect.MySQLDialect
</prop>
<!-- 設定是否在控制檯輸出由Hibernate生成的SQL語句 -->
<prop key="show_sql">true</prop>
</props>
</property>
</bean>
<bean id="userDAO" class="com.integration.dao.UserDAOImpl">
<property name="sessionFactory">
<ref local="sessionFactory" />
</property>
</bean>
<bean id="registerService" class="com.integration.action.RegisterAction">
<property name="userDAO">
<ref local="userDAO"/>
</property>
</bean>
</beans>6.專案概覽
7.register.jsp與success2.jsp的內容分別如下：
<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>Insert title here</title>
</head>
<body>
<form name="input" action="register" method="get">
使用者名稱: <input type="text" name="userName"><br/>
密碼:<input type="password" name="pwd"><br/>
<input type="submit" value="提交">
</form>
</body>
</html><%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>Insert title here</title>
</head>
<body>
註冊成功了!!
</body>
</html>success.jsp用不到。
8.執行專案
在位址列輸入
輸入資訊並提交
看一下資料庫
至此，如何使用SSH開發程式就介紹完了！！
完整的原始碼在這裡